Improved soeghum-evapoeatoe



TO ALL WHOM IT MAY CONCERN:

@nitrh tat-2s in'trnt @nm.

ADDlSON L. FOLGE'R. OF SUMNER, lNDlAN A.

Letters Patent No. 65,738, dated Jwnell, 1867.

IMPROVED SORGHUM-EVAPORATOR.

Be it known that I. A. L. FOLGER, of Sumner, in the county of Bush, andState of Indiana, have invented a new and useful improvement inSorghum-Evaporatorai; and I do hereby declare that the following is afull, clear, and exact description'of'the same, reference being bad tothe annexed drawings, making part of this specification, in which-Figure 1 is a vertical longitudinal section.

Figure 2 is a plan.

Figure 3 is a section on the line z z, fig. '2.

Figure 4 is a a section on the line 3 y.

Figure 5 is a section on the line 2 z.

The same letters are employed in all the figures in the indication ofthe same parts.

A is the furnace, constructed with a fire-chamber and grate-bars underthe transverse pans, and being divided into two fines, A and A by alongitudinal verticalpartition, A extending from the fire-chamber backto the chimney at B. These fines A and A are respectively closed inwhole or in part by dampers C and D, actuated by the crank C and rod D.Over the fire-chamber I place a series of flaring pans, E E E settransversely across the furnace, and having one end overhanging the sideof the furnace for convenience in skimming on one side, as theebullition of the juice in the pans will throw the scum to this colderend of the pan. Gateways are constructed in the series of transversepans, through which the juice placed in the pan E will flow successivelyinto all the other pans in the series. I have shown three, but thisnumber is not fixed. These gateways are closed by gates F and screens G.The screens are formed with a metallic rim, and covered with wire gauzeor a foraminated plate. The bottom of the rim will prevent the passageof sedimentary matter from one pan to another, and the screens will stopthe light floating impurities. The connection between the pans is formedby the flanges H H bolted to the outside of the pans on each side of thegateway, and connected by a This packing projects in a finpacking ofsheet copper or other suitable material placed between them at H.between the flanges into the gateway to form a guide for the gates andscreens. The gates are attached by stems to the levers or springs I,which being attached to the pans on one side of the gates, are carriedover the same and secured to the rods K, on which they slide up and downas actuated by the downward pressure of the nuts K and the upwardpressure of the spiral springs L. Behind the transverse pans are placedtwo longitudinal pans M and N. The pans E, E, E and M, are on one level,the pan N is a little lower, and the juice after flowing through all theother pans is drawn into the pan N through a gate, 0, actuated by alever, O. The preparation of the sirup is completed in the pan N, fromwhich it is drawn in a finished state.

The pan is placed over the flue A, and the pan N over the flue A. Thedamper G regulates or entirely cuts on the drailght under the pan N. Inlike manner the damper D regulates or entirely cuts off the draughtunder the pan M, and by means of these two dampers the application-ofheat to these finishing-pans is placed entirely within the discretionarycontrol of the operator, a power that is essential to the perfectdirection of the manufacture.

What I claim as my invention, and desire to secure by Letterslaterzt,.is

1. The combination of the furnace A, having a longitudinal partition,Athe transverse overhung pans E E E and longitudinal pans M and N,substantially as described.

2. The furnace A, constructed with double fines A and A, which areindependently regulated by means of the dampers C and D, arranged tooperate in relation to the pans M and N substantially as described.

3. The arrangement of the pansE E E gates F, screen Gr, lever I, rod K,nut K, and springs L, substantially as described.

4. The arrangement of the transverse and longitudinal pans, with flangesH H, intermediate plate H, and gates F, and screens G, substantially asset forth. v

In testimony whereof I have signed my name to this specification in thepreseneeoftwo subscribing witnesses.

ADDISON L. FOLGER.

Witnesses:

DAVID E. BARNARD, Gnonen W. STARBREGK.

